Simple question. Im using the dosing code to run a swabbie and avast vibe auto zeovit reactor. The swabbie comes on every three hours and the reactor goes twice a day. My question is when do these come on? Say i have the code:

ReefAngel.DosingPumpRepeat( Port7,0,720,60 );

This will run the reactor every 12 hours for 60 seconds. Will it then come on at midnight and midday? Basically does the dosing 'schedule' start at midnight each day?